You'll still get a better sound from amping the fronts. I wouldn't recommend head unit amps for anything...

40W rms sounds a bit much for a head unit anyhow... that's prolly a peak value.

depends totally on what you want and what you can afford.

wot amp u rekkons best to run the stuff ive got a t the mo and 2 12s n how much u rekkon it will cost

the pioneers are fine running off the headunit as they are 35 watts rms, the 6x9 are 100 watts rms i asume your head unit is between 35-45 watts rms so they are underpowered. of you amp the rears then it will be louder in the vback than the front.

i would consider replacing the fronts for ones that are more powerful and the geting a decent 4 chanel amp to run the lot

wot so shud i get an amp that can power the speakers and 2 subs that i havent got yet
so i shudbuy 1 powerful amp 4 the lot

I wouldnt reccomend putting them on an amp unless you already have a sub.

i have a kenwood head unit and am running sum infinty 6953i's and sum pioneer tsg1746;s off of it do u rekkon i shud run an amp and which 1 and shud i run all spekers off it or just 6 x 9s etc.